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# Permittivity And Permeability

47 Threads found on edaboard.com: Permittivity And Permeability

## How to set engineering plastics,ABS, in HFSS.

It probably isn't on the list. Find the properties (permittivity, permeability, conductivity) of ABS and create a new material with those properties.

## how to measure permittivity of metal sheet??

All materials have conductivity, permittivity and permeability. Its a matter of which parameter is more dominant and meaningfull.

## How to create a rectangular waveguide in Advanced Design Sys

I am new to Advanced Design System, and I need help on how to create a rectangular waveguide in ADS. Also, can ADS predict permeability and permittivity?

## Material Measurement Software: does anyone have one?

First: s-parameters are linear model parameters. Many materials have non-linear dc or ac bias dependencies. E.g. if your stimulus power is too high and you have such non-linearities, you'll get strange s-parameter values that aren't real. Second: I guessing your extraction is for a simple linear permittivity and/or (...)

## Looking for information about meta-materials

You need to go through the following papers: 1) The Electrodynamics of substances with simultaneously negative values of permittivity and permeability by V.G. Veselago. 2) Magnetism from Conductors and Enhanced Nonlinear Phenomena By Pendry 3) Composite Medium with simulataneously negative permeability (...)

## Effective Permittivity and permeability extraction

Hi, Can anyone illustrate the extraction method to have the real,imaginary parts of effective permittivity and permeability by simulating a 10 mm long of a 50Ω microstrip line on FR4-Epoxy with thickness of 1.6 mm ε relative=4.4 and loss tangent=0.022;by using HFSS and Matlab. Take a look (...)

## How to introduce Drude model in HFSS?

you can calculate the real and imaginary parts of permittivity/permeability in matlab using your drude/lorentz whatever model. and then you need to calculate the tangent delta electric/magnetic using these real and imaginary parts. you need to write these parameters in a data file in matlab, like: frequency (...)

## how to represent refraction index with CST?

i am working about patch antenna with metamaterials (the substrat=dielectriq+SRRs) . my work is based on CST microwave studio. i want to represent the refraction index "n" of substrat and permittivity and permeability of substrat with CST simulator. how to represent refraction index, permittivity (...)

## how to represent refraction index with CST?

i am working about patch antenna with metamaterials (the substrat=dielectriq+SRRs) . my work is based on CST microwave studio. i want to represent the refraction index "n" of substrat and permittivity and permeability of substrat with CST simulator. how to represent refraction index, permittivity (...)

## Complex permittivity and permeability measurement

Does anybody have some VNA S-parameter measurements data of material samples in a waveguide or a coaxial sample/holder? I'd like to test a piece of software I wrote to extract material properties from S-parameters measurement and I need some reliable measurement data to do it. Another question, does anyone have a similar working piece of softwa

## imaginary permittivity & permeability

Hi... How can i defined negative permittivity & negative permeability in Zeland Software(in ie3d and fidelity)?? Thanx..

## Drude and Lorentz models w.r.t Metamaterials

Standard materials exhibit permittivity and permeability because of atom and molecular resonances. These can be modeled by a simple mass/spring model called the Lorentz oscillator model. Real material have multiple resonances so the overall behavior is the sum of the all the resonances. A drude model is (...)

## <CST FD-Solver> Use experimental values of material pa

Is it possible to force the frequency domain of CST MWS to use the material parameters (permittivity/permeability versus frequency )defined in a file or a list? I know that it is possible to load material parameters (permittivity/permeability versus frequency) from a file and use several fitting schemes. But (...)

## Complex permittivity and complex permeability measurements

I want to measure the complex permittivity and permeability of several materials using transmission/reflection and short-circuit methods using a VNA, waveguide or coaxial transmission lines. I have found few papers and technical notes about them, but all of them are a very quick and not (...)

## I NEED HELP PLEASE (HFSS SRR+WIRE)

For the refractive index, impedance, permittivity and permeability...You should read carefully this paper, Dr. Smith has used HFSS only for S parametres, and the others properties??? may be ML.

## I NEED HELP PLEASE (HFSS SRR+WIRE)

Hi guys I urgently need to simulate the smith paper using HFSS. (paper: Electromagnetic parameter retrieval from inhomogeneous metamaterials) Can anyone help me to obtain the refractive index, impedance, permittivity and permeability? Thanks...

## Split ring resonator (SRR) and Wire with HFSS

Has anyone been able to obtain the refractive index, permittivity and permeability of the single unit cell (SRR+Wire) using HFSS? Plese help me to solve the problem. Thanks...

## electrical properties of several materials at L-band

Hello, I am in search for the electrical properties (permittivity and permeability) at L-band of several materials such as, but not limited to: -various soil constitutions and humidity -construction materials (glass, concrete, reinforced concrete...) -natural obstacles such as trees Does anyone know (...)

## How to measure the air impedance?

The magnetic permeability does not change with conditions. It is the capacitive permittivity that changes. You can measure the capacitance of parallel plates and back out the permittivity to do the impedance calculations.

## permittivity and permeability using HFSS

Dear friends, hope that you all are fine and happy. i have a question regarding HFSS. Can we find out or plot permittivity and permeability of a composite structure over a frequency sweep using HFSS? If its possible in any other electromagetic simulator, then please also let me know. waiting for your quick (...)